Improvement in machine for spinning- metal



1 ,w la, *SM diluted @Staten glatmtldihw.

www "W I J. J. MAR-CY, OF WEST MERIDEN, CONNECTICUT, ASSIGNOR TO I-IIM- SELF AND E. MILLER AND COMPANY, OI." SAME PLACE.

Leners Patent No. 89,491, lated apra 27', 1869.

IMPROVEMENT IN MACHINE FOR SPINNING METAL.

The Schedule referred to in these Letters Patent and making part of the same To all whom fit may concern Be it known that I, J. J. Manor, of West Meriden, in the county of New Haven, and State of Connecticut, have invented a new Improvement in Machine for Spinning Metal; and I do hereby declare the following,when taken in connection with the accompanying drawings, and the letters of reference marked thereon, to be a full, clear, and exact description of the same, and which saiddrawngs constitute partl of this specilication, and represent in Figure l a top view;

Figure 2, a front view; and in Figure 3, a partial top view, to illustrate the operation of the machine.

This invention relates to an improvement in forming articles from sheet-metal, by the process commonly known as spinniugf the object being to positively guide the spinning-tool without connecting the tool with machinery which revolves the metal being formed that is to say, the former and metal are caused to revolve together by power, while the tool is moved by hand, being guided by a positively-defined path.

To enable others skilled in the art to construct and use my improvement, I will fully describe thesame, as illustrated in the accompanying drawings.

A is the bed of the machine, upon which the operative mechanism is supported.

B is the mandrel, revolving freely in bearings, C, and driven in the usual manner of similar mandrels, by the application of power thereto through the pulley O..

0n the said mandrel the former D is placed, here represented as a cone, but may be of any desired form to which it is desired to bring the metaL E is a spindle, arranged in a head, El, and in a line axially to the mandrel B, so as to be moved toward or from the said mandrel, by means of the scroll-wheel, or cam E5, the said Wheel having a spiral groove upon its under surface, and a stud on the mandrel entering the said groove, as seen iu fig. 2, so that by turning the said wheel, the mandrel is quickly forced forward or drawn back, and the bearing of -the stud on the wheel being in a line radial from the centre of the wheel is held firmly by the said groove without any other security, the said spiral groove being indicated by broken lines in lig. l.

Upon its inner end is lined a sleeve, d, (see iig. 3,) which revolves freely on the said spindle, without causing the revolution of the said spindle.

rlhe disk of metal to be formed is placed upon the end of the former, and clamped thereon, by forcing the spindle E toward the mandrel, to press the sleeve -against the disk, as seen in g. 3, the disk being denoted in red, so that whenthe mandrel and former revolve, the disk being lirmly held, willrevolve with the mandrel.

Thus far the device `is common, and the usual manner of bringing the disk down on to the former has been by the use of a spinning-tool, in the hand of the operator, working the metal down by degrees until the desired form is attained. p

To facilitate this operation I arrange a carriage, G, on a guide, H, of the bed-plate, to which a longitudinal movement is imparted by a cam, H, on the transverse shaft, H2, the said cam being connected to the carriage by a rod, I, threaded, so that by the turning ofthe nuts w fw, the carriage G, on the slide L, may be adjusted longitudinally relative to the block P, so that the tool will be in proper position to traverse the form desired, the cam Hl giving a positive movemeut to the carriage, as from the position in fig. 1, to that in iig. 3, and returning.

Attached to the carriage G is a transverseguide, L, to which an ordinary slide-rest, M, is attached, the said rest adjustable on the guide L, in the usual man ner for slide-rests.

To thecarriage a lever, N, is pivoted, at lnf, passing along over the carriage, its other end provided with an arm, or stud, d, which sets into the groove f, of a guiding-block, P, so that as the carriage is moved from the position in iig. 1, to that in lig. 3, the said lever N will be thrown out or in, as the case may be, or will follow in the form of the groove f, here represented as a single incline, and corresponding to the former D.

The lever N is attached to the slide-rest so as to'v -is moved along by the turning of the shaft H2, and

guided in the proper path to work the metaldown on to the former. The shaft HQ being turned'by the hand of the operator, regulates the movement of the tool according to the Work being produced, the tool, however, by the block P, being automatically guided in a proper path, and for the ease and convenience of the operator, I arrange a counter-shaft, R, with a crankwheel, S, by which a pinion, T, on the shaft R, works into a gear, U, on the shaft H2.

It will be readily seen that dierent forms may be produced by the same machine, by changing both the former D and block P, the groove in the block P always corresponding to the former D.

The adjustment of the spinning-tool will be readily understood by those skilled in the use of the slide-rest, and needs here no explanation.

I do not wish to be understood as broadly claimiu automatically guiding the spinning-tool in a mechanically-defined path, as such I am aware is not new;

and I am also aware that machines for spinning have` been produced, in which both the former and spinningtool have been operated and guioeclby the saine power, but to this there are serious obj eotions, as With one piece of metal it is necessary that the tool be moved slower than with another. It is, therefore, essential that the judgment of theoperator may be exercised in guiding the tool, to adapt itself to the peculiarities of the metal, or to the forms into which the metal is to be Wrought.

Having fully described my invention,

' What I Claim as new and useful, and desire to se- 1. The arrangement ofthe guide-block P, with the longitudinal carriage G, Combined with the lever N, 

